Can I use pie for graduate thesis questionnaire?

Of course. Postgraduate thesis questionnaire can use pie chart. The pie chart is afraid of being printed, because it is black and white and can't be seen clearly. You can turn each division into a different model. Or the white line in the middle. The master's thesis is an academic thesis written by master students, which has a certain theoretical depth and a high academic level. It emphasizes the originality of the author's thoughts and viewpoints, and the research results should have stronger practical value and higher scientific value.